Flat Roofing Tooting
From small leaks to full flat roof replacement, we deliver tidy, durable work across Tooting, with clear advice and honest pricing.
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Flat Roofing Services in Tooting
Our Services
Flat Roofing Done Properly
Flat roofs can be brilliant when they’re built right. The problems usually come from rushed details, poor outlets, or cheap materials. We focus on the parts that actually stop leaks, clean joins, solid edges, correct falls, and reliable waterproofing, so your roof holds up year after year.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Flat Roof Types We Install
We’ll recommend the right system for your roof size, foot traffic, and budget, then fit it to a standard you can trust.
EPDM Rubber Roofing
A strong, flexible membrane that handles temperature changes well. Great for extensions and larger flat roofs where long-term performance matters.
GRP Fibreglass Roofing
A tough, seamless finish that suits balconies, dormers and walk-on areas. Ideal when you want a clean look with reliable waterproofing.
Torch-On Felt Roofing
A solid choice for many homes, fitted in layers for dependable waterproofing. Done properly, it’s durable and cost-effective.
Liquid Roofing Systems
Perfect for awkward shapes or refurbishment work. It creates a continuous waterproof layer and is often a smart option for targeted restoration.
Why Homeowners in Tooting Choose Us?
Because we turn up, explain the job clearly, and do the work like it’s our own home. No drama, no messy sites, no vague promises, just solid flat roofing that holds up.
1,000
Project Completed
97%
Customer Satisfaction
40+
Years of Experience
Trusted Roofing Services Across the
South East
Real feedback from homeowners who wanted a flat roof done once, and done right.
Removal of Chimney stack, replacement of roof underlay, guttering and flat roof repair. - Mitchell from Alliance Roofing & Building was the only builder, of many that I had contacted, that climbed a ladder to inspect my flat-roof and to climb into my loft-space to inspect the main roof from the inside. After an extensive review of my property and discussing my options, he emailed me his quotation on the same day. Booking in dates for Alliance & Roofing to commence work was quick and effortless. They arrived on time, completed the work as planned to a professional standard. Provided Photos of work carried out at all stages. I highly recommend Alliance Roofing & Building.
New roof on my bungalow - I recently had the pleasure of working with Alliance Roofing and Building to install a new roof on my bungalow, and I couldn't be more satisfied with the results. From start to finish, the entire process was smooth and professional. Mitchell, who led the project, was exceptional. His expertise and dedication were evident from the moment he arrived. He and his team were not only highly skilled but also incredibly helpful and courteous throughout the entire job. They took the time to answer all my questions
New slate roof - Mitchell and his team installed my new roof and I'm very satisfied. The quality is superb, they were professional, punctual, and communicative. The project finished on time and the site was left spotless.
Guttering repair - Mitchell came to repair my guttering, he was on time, polite, efficient and conscientious. He kept me informed at each stage of the work that was needed.
Roof repairs - Mitchell repointed a chimney and installed a chimney cowl. He also did some cementing work to the roof. Mitchell was very polite and a conscientious worker. He kept me informed throughout the job. Mitchell was able to give me a quote and do the repair work within a few days. I wouldn’t hesitate to recommend Alliance Roofing & Building.
Replacement of flat roof - Mitchell and his team are smart, communicative, skilled, friendly, helpful, trustworthy and reliable. I would highly recommend their roofing services.
Roof tile replacement and chimney repair - Mitchell and his team are reliable, efficient and hard working. We will certainly use them again in the future. Thanks guys
Chimey Removal & Other Minor Repairs - Mitchell was the only roofer who quoted for the job that actually took the time to go up on the roof to inspect the issue, which was appreciated at the time. He fitted us in around other jobs within 2 weeks to get the work done in a timely manner. The work (which included the removal of a chimney stack to below the roof line, repointing the ridge line, and various other patch repairs) appears to have been completed to a good standard (posting days after completion). Mitchell and his team were polite, conscientious and happy to help throughout the job.
Fixed the roof, including all the felting and repaired the chimney. - Good communication throughout. Good work. Very happy with the service.
Roof repair - Great, really friendly and nice team
Tile realignment/repair and felt renewal - Mitchell and his team were excellent. Would definitely recommend Alliance. The team were on time (in fact they were able to begin the job half a day earlier than initially discussed), polite, efficient and kept us informed of progress each day. We could not have asked for a better service.
Roof verge repair. - Mitchell was polite, friendly and knowledgeable. The team were polite and efficient. The work was completed for the price quoted, which was competitive, and in the timeframe advised.
repair of box gutter behind parapet wall - Mitchell undertook a detailed diagnosis of the work required, started the job quite quickly and completed it satisfactorily.
Leak in the roof- Very polite and professional. Job was completed professionally at a very good price. Would highly recommend
New slate roof - Mitchell and his team installed my new roof and I'm very satisfied. The quality is superb, they were professional, punctual, and communicative. The project finished on time and the site was left spotless.
Roof repairs - Mitchell repointed a chimney and installed a chimney cowl. He also did some cementing work to the roof. Mitchell was very polite and a conscientious worker. He kept me informed throughout the job. Mitchell was able to give me a quote and do the repair work within a few days. I wouldn’t hesitate to recommend Alliance Roofing & Building.
Roof tile replacement and chimney repair - Mitchell and his team are reliable, efficient and hard working. We will certainly use them again in the future. Thanks guys
Chimey Removal & Other Minor Repairs - Mitchell was the only roofer who quoted for the job that actually took the time to go up on the roof to inspect the issue, which was appreciated at the time. He fitted us in around other jobs within 2 weeks to get the work done in a timely manner. The work (which included the removal of a chimney stack to below the roof line, repointing the ridge line, and various other patch repairs) appears to have been completed to a good standard (posting days after completion). Mitchell and his team were polite, conscientious and happy to help throughout the job.
Fixed the roof, including all the felting and repaired the chimney. - Good communication throughout. Good work. Very happy with the service.
Roof repair - Great, really friendly and nice team
Tile realignment/repair and felt renewal - Mitchell and his team were excellent. Would definitely recommend Alliance. The team were on time (in fact they were able to begin the job half a day earlier than initially discussed), polite, efficient and kept us informed of progress each day. We could not have asked for a better service.

We’ll inspect your flat roof in Tooting properly, find the real cause of the issue, and give you straight advice on whether it needs a repair or a full replacement.

You’ll get a clear written quote with no vague extras, plus a sensible timeline so you know exactly what’s happening.
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You’ll get a clear written quote with no vague extras, plus a sensible timeline so you know exactly when we can start and how long it should take.
Frequently Asked Questions
It depends on the system and how well it was fitted, but a properly installed flat roof can last for many years. Regular checks help catch small issues early.
If the issue is localised, repairs are often enough. If the membrane is failing across large areas or the deck is damaged, replacement is usually the smarter long-term fix.
Blocked outlets, split seams, lifted edges, damaged flashing, and ponding water are the usual culprits. The key is fixing the cause, not just covering the symptom.
If it’s urgent, we aim to attend quickly to stop further water ingress and make the area safe, then book the proper repair as soon as possible.
EPDM, GRP, torch-on felt and liquid systems can all work well. The best option depends on roof size, foot traffic, drainage, and budget.
Yes. We’ll explain the options, confirm what’s included, and provide a clear quote so you can make a decision with no pressure.

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